electric alarm
英
美
- alarm n.警报；警报器；惊恐vt.警告；使惊恐；向...报警
- electric adj.电的；电动的；带电的；刺激的n.电动产品
- Magnetic snap-action electric alarm contacts are used in adverse operating conditions.
磁性吸合电警报接点用于相反的操作条件。
- Electric alarm contacts open and close circuits in response to the position of the pressure gauge pointer.
电警报接点根据压力表指针的位置开启和关闭电路。
